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Dr. Andrew Rynne
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Dr. Andrew Rynne

Family Physician

Exp 50 years

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6 Weeks Pregnant. Ultrasound Shows Flickering Of Heart Of Fetus, But Did Not Get Heart Beat. Anything To Worry?

hi my name is kim and i had an ultrasound today im 6 weeks 5 days along im a little worried that they could not get a heart rate from the baby but you could see the little flickering of the heart and all the measurments were saying i was 6 weeks 5 days my dr did not seem worried and has me coming back in a week for a follow up ultrasound i had a vaginal ultrasound done should i be worried about my little peanut
Mon, 26 Aug 2013
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Radiologist 's  Response
Hi,
Thanks for writing in to us.

If there is a flicker (unconfirmed) heart beat at 6 weeks 5 days and all your measurements are in order then there is no need to worry. Most likely the fetal cardiac activity will be confirmed next week in your ultrasound scan.

By Trans Vaginal ultrasound the fetal heart motion should be seen when the mean sac diameter reaches 20 mm. You may still be a few days away from the cardiac activity being fully appreciated.Fetal cardiac activity is the most important indicator of fetal viability. Other less robust markers are size and volume of the gestational sac, presence and size of yolk sac, and fetal crown-rump length (CRL). However, these markers are useful for dating.

Hope this helps
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OBGYN Dr. Rubee Khattar's  Response
Hi dear,
Firstly relax because if the scan shows the flickering of heart than everything is fine.In this case you need not worry about the heart rate at such an early gestation.
Go and get a scan repeated after a week and get assured
Good luck
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6 Weeks Pregnant. Ultrasound Shows Flickering Of Heart Of Fetus, But Did Not Get Heart Beat. Anything To Worry?

Hi, Thanks for writing in to us. If there is a flicker (unconfirmed) heart beat at 6 weeks 5 days and all your measurements are in order then there is no need to worry. Most likely the fetal cardiac activity will be confirmed next week in your ultrasound scan. By Trans Vaginal ultrasound the fetal heart motion should be seen when the mean sac diameter reaches 20 mm. You may still be a few days away from the cardiac activity being fully appreciated.Fetal cardiac activity is the most important indicator of fetal viability. Other less robust markers are size and volume of the gestational sac, presence and size of yolk sac, and fetal crown-rump length (CRL). However, these markers are useful for dating. Hope this helps